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Very intense light damages…..in photosynthesis.
a) enzymes                          
b) stomata
c) chlorophyll                     
d) leaves

c

Very weak light…... the rate of photosynthesis.
a) speeds up                         
b) slows down
c) doesn’t affect                 
d) none of these

b

The carbon for the synthesis of glucose in photosynthesis comes from…….
a) Carbon dioxide (CO2)  
b) NADPH
c) ATP                                   
d) water

a

As the concentration of COincreases, the rate of photosynthesis…..
a) decreases                         
b) increases
c) doesn’t affect                 
d) none of these

b

As the concentration of COfalls down, the rate of photosynthesis…..
a) decreases                        
b) increases
c) doesn’t affect                 
d) none of these

a

The concentration of CO2 in plants decreases due to…….
a) opening of stomata     
b) closing of stomata
c) absorption of water    
d) none of them

b